None 4-1/8 in. x 10-1/8 in. Plastic Sidewall Heat and Air Deflector
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The Thermwell Products Co., Inc. 4-1/8 in. x 10-1/8 in. Plastic Sidewall Heat and Air Deflector is designed to be used with your central forced-air system to improve the airflow in your home. Plastic construction provides superior durability.